[Introduction]:E07-400MM10S uses Texas Instruments (TI) CC1101 chip as the core self-developed SMD wireless module, the working frequency band is 431-446.5 MHz, and uses an industrial-grade high-precision 26MHz crystal oscillator. This series of modules is mainly aimed at smart home, industry, scientific research and medical and short-distance wireless communication equipment. Extensive hardware support for packet processing, data buffering, burst transfers, received signal strength indication (RSSI), clear channel assessment (CCA), link quality indication, and wake-on-wireless (WOR) is available
| pin numbe | pin name | Pin direction | Pin usage |
| 1 | VCC | input | power supply |
| 2 | GND | - | power supply |
| 3 | NC | - | - |
| 4 | NC | - | - |
| 5 | NC | - | - |
| 6 | ANT | input/output | Antenna interface, stamp hole (50 ohm characteristic impedance) |
| 7 | GND | - | power supply |
| 8 | NC | - | - |
| 9 | NC | - | - |
| 10 | NC | - | - |
| 11 | NC | - | - |
| 12 | MISO/GD01 | output | SPI data output |
| 13 | MOSI | input | SPI data input |
| 14 | CSN | input | Module chip select pin, used to start an SPI communication |
| 15 | SCK | input | SPI clock input |
| 16 | GND | - | power supply |
| 17 | NC | - | - |
| 18 | GD00 | input/output | CC1101 chip pins, see the chip official user manual for details |
| 19 | NC | - | - |
| 20 | GD02 | input/output | CC1101 chip pins, see the chip official user manual for details |